Window frame



NOV. 1, 1932. g R N 1,886,145

WINDOW FRAME Filed Feb. 3, 1930 [Ml/6711502 fiefio C ANDEQSEN ATroe/vsKi Patented Nov. 1, 1932 PATENT QFFICE mm c. ANDERSEN, or BAYPORT, MINNESOTA WINDOW FRAME Application filed February a, 1930. Serial No. 425,624.

In the manufacture of window frames, a standard width of amb is usually provided, but often there is a call for a jamb of less than standard width. It then becomes neco essary to either cut down the standard width jamb or provide a jamb of less width than standard. The standard width jamb in one piece has, with the increasingcost of lumber, added to the expense of the frame, and if the to manufacturer attempts to carry jambs of dif ferent width in stock, he will not only find it dinicult to keep supplied with the desired dimensions, but will add quite materially to the expense of manufacturing and selling the frames. To obviate this difiiculty, I find an economical way of constructing a frame is to build up a narrow jamb of less than standard width, to one of the desired standard width, by the use of an inner liner strip at the inner Q edge of the jamb, and when there is a call for a frame with a jamb of less than standard width it may be easily obtained by merely removing the liner strip. This use of the liner strip on the inner edge of each amb, not only enables me to provide a jamb of any width dein a single piece, the full width of the narrow jamb and the liner strip. Furthermore, the use of the liner strip allows the convenient change in the width of the amb without the necessity of cutting the lumber, and the 35 change can be made with comparatively little expense.

A further advantage in the use of the inside liner, lies in the fact that it may be thicker than the abutting edge of the jamb, a feature of importance frequently ,in applying the inside trim, without the necessity of using a piece of lumber of greater thickness than is required for the jamb itself.

The object of my present invention is to '45 utilize this liner strip in making a windproof joint between the jamb and the sheathing that is interposed in building construction between the amb and the lath and plaster.

A further object is to utilize this inner liner strip in making this air-proof joint so that it becomes unnecessary to groove and thereby weaken the inner portion of the jamb itself.

A further object is to provide an airproof construction on the inner side of the frame cooperating with the narrow blind stop and the sheathing associated therewith on the outer side of the frame to complete the windproof walls around the window weight box.

The invention consists generally of various constructions and combinations, all as herein-' after described, and particularly pointed out in the claim.

In the accompanying drawing forming a part of this specification Figure 1 is a perspective view of a portion of the window frame embodying my inven tron looking toward the inner side of the frame; and v Figure 2 is a sectional View on the line 2--2 of Figure 1.

In the'drawing, 2 represents a window sill, and 3 the jambs having the usual central parting bead land provided at the outer edge with narrow blind stops 5 and the sheathing strips (Shaving tongue and groove joints 7 with the blind stops to provide a structure adapted for either narrow or wide blind stop construction, all as described and claimed in my U. S. Patent, No. 1,595,958, dated August 10, 1926. A studding S is arranged parallel with the ambs8 and separated therefrom to form the usual weight box 9. Atthe inner edge of each jamb I provide an inner liner lOmade of a strip of fibrous material of suitable width and secured suitable means to the edge of the jamb and forming an inward continuation thereof. In making the frame, I prefer to provide a comparatively narrow jamb and then bring its width up to the standard by the use of the inner liner strip and of course the width of this strip may be increased or decreased as desired so that any width of jamb may be provided. Furthermore, if for any reason it is desired to use a jamb of less than the standard width, the liner strips can be easily and quickly separated from the jambs and entirely remover: from the window frame.

I have also found in the manufacture of i thick stock is used for the jambs, it is not ward continuation of said sto ,an inner liner desirable to groove the faces thereof for the strip secured to the inner e ge of the jamb purpose of making wind or dustproof jIoints, and having one exposed edge face flush subut y providing the inner liner strip, may stantially with the normally exposed face of groove the outer edge thereof and still use the jamb and formin a continuation thereof comparatively thin material for the jamb itself. Lthus avoid the more expensive,thicker normally material for the jamb and at the same time will! rovide the desired wind and dustproof joint tween the jamb and the inside trim or finish.

and said strip extending laterally beyond the concealed faee'ofthe jambzand a wing an edge toedge closed-joint with the other edge face of said liner strip and formin a lateral continuation thereof.

In witness 'whereofll have hereunto set Furthermore, in the manufacture of winmyehand this 30th day of January 1930.

dow frames, it is often necessary to provide a considerable thickness of material atthe inner edge of the jamb and the use of the liner strip enables me to provide suchthicknest without the necessity of making the whole'amb of thicker material. I am thus able with the use of the liner strip, to not only economize in the width of the lumber used for the jamb, but also in the thickness of such lumber.

When the liner strip is secured to the edge of the jamb, it not only provides for the desired width corresponding to the depth of the window frame, but the edge of the strip may be grooved as indicated at 11 and then a sheathing-strip 12 having a tongue 13 may be interposed between the liner and the lath and plaster 14. In this way a close air-tight j oiiit is made between the jamb and the sheathstrip without the necessity of providing a jamb the full depth of the window frame or of suflieient thickness so that a groove may safely be made in the adjacent face. These liner strips may be made of material having little value other than for this purpose and of course the width of the strips may be varied according to the desired dimensions of the sheathing interposed between the liner and the lath and plaster. In distinction from the narrow blind stop, the exposed edge of the liner strip will be flush or substantially so with the exposed face of the jamb as shown 4;, plainly in Figure 2, while the blind stop pro- Eels beyond the face of the jamb.

.Itwill be understood that these liner strips may-be made of different thickness accordin to the additional width desired for the jam% and having been firmly secured to the edge of the jamb, become in effect, an integral part ofit, practically as solid and substantial as though the j amb and liner strip were formed in one piece.

In various ways the details of construction herein shown and described may be modified and still be within the scope of my invention.

I claim as my invention:

a. window frame, a narrow blind stop adapted to be inserted between the jamb and the outside casing and projecting inwardly beyond the face of, the jamb, and a board wider than said stop having an edge to edge lfinclosed joint therewith and forming an out- FRED C. ANDERSEN. 

